US 12,031,444 B2
Sealing assembly for a turbine engine
Teddy Frederic Gilbert Chantrait, Moissy-Cramayel (FR); Antoine Robert Alain Brunet, Moissy-Cramayel (FR); Mael Thevenot, Moissy-Cramayel (FR); Gilles Jean-Luc Dessein, Garderes (FR); Jean-Yves Fernand Paris, Oursbelille (FR); and Vincent Gilbert Alex Wagner, Escondeaux (FR)
Assigned to SAFRAN AIRCRAFT ENGINES, Paris (FR)
Appl. No. 17/995,818
Filed by SAFRAN AIRCRAFT ENGINES, Paris (FR)
PCT Filed Apr. 1, 2021, PCT No. PCT/FR2021/050577
§ 371(c)(1), (2) Date Oct. 7, 2022,
PCT Pub. No. WO2021/205099, PCT Pub. Date Oct. 14, 2021.
Claims priority of application No. 2003636 (FR), filed on Apr. 10, 2020.
Prior Publication US 2023/0118871 A1, Apr. 20, 2023
Int. Cl. F01D 11/12 (2006.01)
CPC F01D 11/122 (2013.01) [F05D 2240/55 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A sealing assembly for a turbine engine comprising a first element and a second element, the first and second elements being concentric and in relative rotational movement with respect to each other about an axis of rotation, said sealing assembly comprising at least one first wiper and an abradable member, the at least one first wiper being annular in shape and carried by the first element, the at least one first wiper extending radially towards the abradable member and continuously around the axis of rotation, the abradable member being annular in shape and carried by the second element, the abradable member extending tangentially opposite the at least one first wiper, the at least one first wiper comprising primary angular segments each extending tangentially along a primary angular sector, said primary angular segments each having, in cross-section, a first constant profile, wherein the at least one first wiper comprises secondary angular segments each extending tangentially along a secondary angular sector, said secondary angular segments each having, in cross-section, a second profile different from said first profile, the number of secondary angular segments being equal to the number of primary angular segments, the secondary angular segments being interposed between the primary angular segments,
wherein each secondary segment comprises a first recess open radially outwards and a second recess symmetrical to the first recess with respect to a median plane of the at least one first wiper, the median plane being perpendicular to the axis of rotation of the sealing assembly,
wherein each secondary segment comprises a central crest which is centered on the median plane of the at least one first wiper, the central crest being delimited laterally by each of the first and second recesses.